Toyota A343 4-Speed Automatic · Toyota/Lexus · Expert rebuild service since 1987. Lifetime warranty. Free diagnostic.
1993–2002 Toyota Land Cruiser (80 Series); 1993–2002 Lexus LX450; behind 4.5L inline-6 (1FZ-FE) engine; heavy-duty A340 variant
| Configuration | 4-speed automatic with overdrive — heavy-duty Land Cruiser variant |
|---|---|
| Gear Ratios | 1st 2.80:1 · 2nd 1.53:1 · 3rd 1.00:1 · 4th 0.73:1 · Rev 2.73:1 |
| Fluid Type | Toyota Type T-IV ATF |
| Fluid Capacity | 10.5 qts total, 5.5 qts service refill |
Same governor solenoid failure as A340E but under heavier Land Cruiser loads.
Symptoms: Late/early shifts; flashing OD light; P0793 codes
Land Cruiser off-road use puts heavy loads on the forward clutch in rock crawling and hill climbing.
Symptoms: Slip in forward gears under load; delayed Drive engagement
OD band wear at high mileage in heavy-duty applications.
Symptoms: OD slip; drops from 4th on grades or under load
Full disassembly with heavy-duty clutch kits for Land Cruiser applications. Governor solenoid replaced. OD band replaced. All clutch packs replaced. Valve body rebuilt. Full T-IV soft parts kit.
Toyota T-IV every 30,000 miles. Land Cruiser off-road use: service every 20,000 miles.
The A343 is a heavy-duty variant of the A340 family for Land Cruiser applications. Same basic design with stronger clutch packs and increased torque rating.
Likely forward clutch wear from extended low-speed high-torque off-road use. We rebuild with heavy-duty Alto clutch kits for Land Cruiser applications.
Toyota Type T-IV ATF.
2 days.
$1,600–2,200.
Free diagnostic, written estimate, lifetime warranty. Chicago's A343 rebuild specialists since 1987.
